Polypropylene (PP) multi-stage filter tank

By designing a cleaning mechanism in the PP multi-stage filter tank, and using a servo motor to drive the threaded rod to rotate, the surface of the filter screen is automatically cleaned. This solves the problems of filter screen stains affecting efficiency and the time-consuming manual cleaning, thereby improving filtration efficiency and reducing labor intensity.

CN224100149UActive Publication Date: 2026-04-10WEIFANG HONGXIN ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WEIFANG HONGXIN ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Filing Date
2025-04-21
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

After prolonged filtration, existing PP multi-stage filter tanks accumulate a large amount of dirt on the filter screen surface, affecting filtration efficiency, and manual cleaning is time-consuming and labor-intensive.

Method used

The cleaning mechanism is designed, including a scraper, a collection plate, a support plate, a telescopic component, and a drive component. A servo motor drives a threaded rod to rotate, thereby achieving automatic cleaning of the filter screen surface.

Benefits of technology

It enables automatic cleaning of the filter screen surface, improves filtration efficiency, and reduces manual operation time and labor intensity.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224100149U_ABST
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Abstract

The utility model discloses a PP (polypropylene) multi-stage filter tank, which belongs to the technical field of filter equipment and comprises three cleaning mechanisms, the three cleaning mechanisms are all arranged on the left side of a filter screen, each cleaning mechanism comprises a scraper, the outer surface of the scraper is attached to the left surface of the filter screen, and the outer surface of the scraper is attached to the right surface of the filter screen. The right surface of the collecting plate is fixedly connected to the left surface of the filter screen; the supporting plate is arranged on the left side of the scraping plate; the cleaning mechanism is arranged, so that the problems that a large number of stains are attached to the surface of the filter screen due to long-time filtering, the subsequent filtering efficiency is greatly influenced, workers need to detach the filter screen and clean the filter screen during manual cleaning, and the cleaning efficiency is influenced are solved. The operation is time-consuming and labor-consuming.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to filter equipment technical field especially, it relates to a PP multistage filter tank. BACKGROUND

[0002] PP multistage filter tank is a kind of equipment using polypropylene (PP) filter screen to carry out multistage filtration, it is usually composed of multiple filtering units, the PP filter screen precision of each unit is different, can sequentially carry out coarse filtration, medium filtration and fine filtration etc. to water or other fluids, can effectively remove impurities, particles etc., with strong corrosion resistance, good filtering effect, washable and reusable etc. Advantage, widely used in water treatment, chemical industry etc.

[0003] Common PP multistage filter tank on market adopts multilayer filtration, but long-time filtration can cause filter screen surface to be attached with a large amount of dirt, greatly influence subsequent filtration efficiency, and manual cleaning needs worker to disassemble filter screen and clean it, this operation is time-consuming and laborious. UTILITY MODEL CONTENTS

[0004] In view of the problems in the prior art, the utility model provides a PP multistage filter tank, with the advantages of cleaning filter screen surface, solve the problem that long-time filtration can cause filter screen surface to be attached with a large amount of dirt, greatly influence subsequent filtration efficiency, and manual cleaning needs worker to disassemble filter screen and clean it, this operation is time-consuming and laborious.

[0005] The utility model is realized in this way, a kind of PP multistage filter tank, comprising:

[0006] Filter tank;

[0007] Water inlet: the water inlet is opened in the left surface of the filter tank;

[0008] Water outlet: the water outlet is opened in the right surface of the filter tank;

[0009] Filter screen: the filter screen is provided with three, three filter screens are all set in the filter tank interior;Cleaning mechanism: the cleaning mechanism is provided with three, three cleaning mechanisms are all set in the left side of the filter screen, and the cleaning mechanism includes:

[0010] Scraper: the outer surface of the scraper is mutually attached with the left surface of the filter screen;

[0011] Collecting plate: the right surface of the collecting plate is fixedly connected to the left surface of the filter screen;

[0012] Support plate: the support plate is set in the left side of the scraper;

[0013] Telescopic component: the telescopic component is set in the support plate interior.

[0014] As the utility model prefers, the telescopic assembly comprises:

[0015] The first sliding groove is arranged on the right surface of the supporting plate, and the inner wall of the first sliding groove is in sliding connection with the outer surface of the scraper.

[0016] The first sliding rod is fixedly connected to the inner wall of the first sliding groove at both ends thereof, and the outer surface of the first sliding rod is in sliding connection with the inner wall of the scraper.

[0017] The first spring is sleeved on the outer surface of the first sliding rod, the upper end surface of the first spring is fixedly connected to the inner wall of the first sliding groove, and the lower end surface of the first spring is fixedly connected to the upper surface of the scraper.

[0018] As the utility model prefers, the left surface of the supporting plate is provided with a rebound assembly, the rebound assembly is provided with a plurality of rebound assemblies, and the rebound assemblies comprise:

[0019] The second sliding groove is arranged on the inner wall of the filter tank, and the inner wall of the second sliding groove is in sliding connection with the outer surface of the supporting plate.

[0020] The second sliding rod is fixedly connected to the inner wall of the second sliding groove at both ends thereof, and the outer surface of the second sliding rod is in sliding connection with the inner wall of the supporting plate.

[0021] The second spring is sleeved on the outer surface of the second sliding rod, the left end surface of the second spring is fixedly connected to the inner wall of the second sliding groove, and the right end surface of the second spring is fixedly connected to the left surface of the supporting plate.

[0022] As the utility model prefers, the left surface of the supporting plate is provided with a pull ring, the pull ring is provided with three pull rings, and the right end surfaces of the three pull rings are fixedly connected to the left surface of the supporting plate.

[0023] As the utility model prefers, the outer surface of the filter screen is provided with a driving assembly, the driving assembly is provided with three driving assemblies, and the driving assemblies comprise:

[0024] The sliding block is provided with two sliding blocks, one side of the sliding block close to the filter screen is fixedly connected to the outer surface of the filter screen, and the other side of the sliding block close to the collecting plate is fixedly connected to the front and rear sides of the collecting plate.

[0025] The outer surface of the threaded rod is in threaded rotary connection with the inside of the rear sliding block, and the outer surface of the threaded rod is in rotary connection with the inside of the filter tank through a bearing.

[0026] Servo motor: the servo motor output end is fixedly connected on the upper end face of the threaded rod.

[0027] As preferred in the utility model, the third sliding groove is arranged on the inner wall of the filter tank, and the inner wall of the third sliding groove is in sliding connection with the outer surface of the sliding block.

[0028] As preferred in the utility model, the fixed sleeve is arranged on the outer surface of the servo motor, and the inner wall of the fixed sleeve is fixedly connected with the outer surface of the servo motor.

[0029] Compared with the prior art, the utility model has the advantages of the following:

[0030] 1、The utility model discloses a cleaning mechanism, springback assembly, pull ring, drive assembly, third sliding groove are set up, through the servo motor drive threaded rod rotates, threaded rod is driven sliding block along the third sliding groove inner wall and slides upward through the thread, sliding block can drive filter screen and collection board together and move up, through the filter screen and move up, the surface of filter screen and the mutual adhesion of scraper make the scraper to the stain on the surface of filter screen is scraped, when collection board moves up with filter screen and the lower surface of scraper mutual contact, collection board continues to move up, and the lower surface of scraper is extruded to the stain on the lower surface of scraper and is scraped to the upper surface of collection board, and the lower surface of scraper is cleaned, reaches the effect that the surface of filter screen is cleaned. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is the three-dimensional structure schematic diagram provided by the utility model embodiment;

[0032] Figure 2 It is the explosion schematic diagram of the cleaning mechanism and the pull ring provided by the utility model embodiment;

[0033] Figure 3 It is the explosion schematic diagram of the springback assembly and the third sliding groove provided by the utility model embodiment;

[0034] Figure 4 It is the explosion schematic diagram of the drive assembly and the fixed sleeve provided by the utility model embodiment.

[0035] In the drawing: 1, filter tank;2, water inlet;3, water outlet;4, filter screen;5, cleaning mechanism;510, scraper;520, collection board;530, support plate;540, telescopic assembly;541, first sliding groove;542, first sliding rod;543, first spring;6, springback assembly;601, second sliding groove;602, second sliding rod;603, second spring;7, pull ring;8, drive assembly;801, sliding block;802, threaded rod;803, servo motor;9, third sliding groove;10, fixed sleeve. DETAILED DESCRIPTION

[0036] In order to further understand the application content, characteristics and effects of the present application, the following examples are given and described in detail as follows with reference to the drawings.

[0037] The structure of the present application will be described in detail below with reference to the drawings.

[0038] As shown in Figures 1 to 4 The PP multi-stage filter tank provided by the embodiment of the present application comprises:

[0039] The filter tank 1;

[0040] The water inlet 2 is arranged on the left surface of the filter tank 1;

[0041] The water outlet 3 is arranged on the right surface of the filter tank 1;

[0042] The filter screen 4 is provided with three filter screens 4, and the three filter screens 4 are arranged inside the filter tank 1;

[0043] The cleaning mechanism 5 is provided with three cleaning mechanisms 5, and the three cleaning mechanisms 5 are arranged on the left side of the filter screen 4, and the cleaning mechanism 5 comprises:

[0044] The scraper 510 is attached to the left surface of the filter screen 4;

[0045] The collecting plate 520 is fixedly connected to the left surface of the filter screen 4;

[0046] The supporting plate 530 is arranged on the left side of the scraper 510;

[0047] The telescopic assembly 540 is arranged inside the supporting plate 530.

[0048] As shown in Figure 2 The telescopic assembly 540 comprises:

[0049] The first sliding groove 541 is arranged on the right surface of the supporting plate 530, and the inner wall of the first sliding groove 541 is in sliding connection with the outer surface of the scraper 510;

[0050] The first sliding rod 542 is fixedly connected to the inner wall of the first sliding groove 541 at both upper and lower ends, and the outer surface of the first sliding rod 542 is in sliding connection with the inner wall of the scraper 510;

[0051] The first spring 543 is sleeved on the outer surface of the first sliding rod 542, and the upper end surface of the first spring 543 is fixedly connected to the inner wall of the first sliding groove 541, and the lower end surface of the first spring 543 is fixedly connected to the upper surface of the scraper 510.

[0052] Adopting the above scheme: moving upwards through the filter screen 4, the surface of the filter screen 4 is in close contact with the scraper 510, so that the scraper 510 scrapes the stains on the surface of the filter screen 4, when the collecting plate 520 moves upwards with the filter screen 4 and is in contact with the lower surface of the scraper 510, the collecting plate 520 continues to move upwards, the collecting plate 520 extrudes the lower surface of the scraper 510 and scrapes the stains on the lower surface of the scraper 510 to the upper surface of the collecting plate 520, cleaning the lower surface of the scraper 510, at the same time, the scraper 510 is extruded by the collecting plate 520 and moves upwards along the first sliding groove 541, the scraper 510 extrudes the first spring 543, so that the first spring 543 generates elastic force, playing a buffering role.

[0053] Referring to Figure 3 As shown in the figure, the left surface of the supporting plate 530 is provided with a rebound assembly 6, and the rebound assembly 6 is provided with a plurality of rebound assemblies 6, and the plurality of rebound assemblies 6 includes:

[0054] The second sliding groove 601 is provided on the inner wall of the filter tank 1, and the inner wall of the second sliding groove 601 is in sliding connection with the outer surface of the supporting plate 530;

[0055] The second sliding rod 602 is fixedly connected to the inner wall of the second sliding groove 601 at both ends, and the outer surface of the second sliding rod 602 is in sliding connection with the inner wall of the supporting plate 530;

[0056] The second spring 603 is sleeved on the outer surface of the second sliding rod 602, and the left end surface of the second spring 603 is fixedly connected to the inner wall of the second sliding groove 601, and the right end surface of the second spring 603 is fixedly connected to the left surface of the supporting plate 530.

[0057] Adopting the above scheme: when the scraper 510 is extruded by the collecting plate 520, the scraper 510 can apply force to the supporting plate 530, so that the supporting plate 530 moves to the left along the inner wall of the second sliding groove 601, at the same time, the supporting plate 530 extrudes the second spring 603, so that the second spring 603 generates elastic force, so that the collecting plate 520 can clean the lower surface of the scraper 510 comprehensively.

[0058] Referring to Figure 2 As shown in the figure, the left surface of the supporting plate 530 is provided with a pull ring 7, and the pull ring 7 is provided with three pull rings 7, and the right end surface of the pull ring 7 is fixedly connected to the left surface of the supporting plate 530.

[0059] Adopting the above scheme: the pull ring 7 mainly plays a role in driving the supporting plate 530, which is convenient for the subsequent movement of the collecting plate 520 back.

[0060] Referring to Figure 4 As shown in the figure, the outer surface of the filter screen 4 is provided with a driving assembly 8, and the driving assembly 8 is provided with three driving assemblies 8, and the three driving assemblies 8 include:

[0061] Sliding block 801: two sliding blocks 801 are arranged, and the two sliding blocks 801 are fixedly connected to the outer surface of the filter screen 4 near one side of the filter screen 4, and the sliding blocks 801 are fixedly connected to the front and rear sides of the collecting plate 520 near the side close to the collecting plate 520;

[0062] Threaded rod 802: the outer surface of the threaded rod 802 is rotatably connected to the inside of the rear sliding block 801 through threads, and the outer surface of the threaded rod 802 is rotatably connected to the inside of the filter tank 1 through a bearing;

[0063] Servo motor 803: the output end of the servo motor 803 is fixedly connected to the upper end surface of the threaded rod 802.

[0064] By adopting the above scheme: in order to move the filter screen 4 upwards, the threaded rod 802 is driven to rotate by the servo motor 803, the threaded rod 802 drives the sliding block 801 to slide upwards along the inner wall of the third sliding groove 9 through threads, and the sliding block 801 can drive the filter screen 4 and the collecting plate 520 to move upwards together.

[0065] Reference Figure 3 As shown in the figure, the inner wall of the filter tank 1 is provided with a third sliding groove 9, and the third sliding groove 9 is provided with a plurality of third sliding grooves 9, and the inner walls of the third sliding grooves 9 are in sliding connection with the outer surfaces of the sliding blocks 801.

[0066] By adopting the above scheme: the third sliding groove 9 mainly provides a moving path for the movement of the sliding block 801.

[0067] Reference Figure 4 As shown in the figure, the outer surface of the servo motor 803 is provided with a fixed sleeve 10, the inner wall of the fixed sleeve 10 is fixedly connected to the outer surface of the servo motor 803, and the lower end surface of the fixed sleeve 10 is fixedly connected to the upper surface of the filter tank 1.

[0068] By adopting the above scheme: the fixed sleeve 10 mainly plays a role in fixing and supporting the servo motor 803.

[0069] Working principle of the utility model:

[0070] In use, when the sewage is filtered, the threaded rod 802 is rotated by the servo motor 803, the threaded rod 802 drives the sliding block 801 to slide upward along the inner wall of the third sliding groove 9, the sliding block 801 drives the filter screen 4 and the collecting plate 520 to move upward together, the filter screen 4 moves upward, the surface of the filter screen 4 is in close contact with the scraper 510, so that the scraper 510 scrapes the stains on the surface of the filter screen 4, when the collecting plate 520 moves upward with the filter screen 4 and contacts the lower surface of the scraper 510, the collecting plate 520 continues to move upward, the collecting plate 520 extrudes the lower surface of the scraper 510 and scrapes the stains on the lower surface of the scraper 510 to the upper surface of the collecting plate 520, so as to clean the lower surface of the scraper 510, at the same time, the scraper 510 is extruded by the collecting plate 520 and moves upward along the first sliding groove 541, the scraper 510 extrudes the first spring 543, so that the first spring 543 generates elastic force, when the scraper 510 is extruded by the collecting plate 520, the scraper 510 can apply force to the supporting plate 530, so that the supporting plate 530 moves left along the inner wall of the second sliding groove 601, at the same time, the supporting plate 530 extrudes the second spring 603, so that the second spring 603 generates elastic force, so that the collecting plate 520 can clean the lower surface of the scraper 510 comprehensively, when the cleaning is completed, the first spring 543 and the second spring 603 release the elastic force and push the supporting plate 530 and the scraper 510 to move back, and the stains on the surface of the collecting plate are cleaned by the worker.

[0071] When it is necessary to move the filter screen 4 back, the supporting plate 530 is moved left by pulling the pull ring 7 left, and then the threaded rod 802 is reversely rotated by the servo motor 803, so that the filter screen 4 can be moved back to the initial position.

[0072] It should be noted that the servo motor 803 is an existing device or equipment, or an existing device or equipment that can be realized, and the power supply of the servo motor 803 and its principle are clear to those skilled in the art, so they will not be described in detail.

[0073] In summary: the PP multi-stage filter tank solves the problem that long-time filtering will cause a large amount of stains to adhere to the surface of the filter screen, greatly affecting the subsequent filtering efficiency, and manual cleaning requires the worker to disassemble the filter screen and clean it, which is time-consuming and labor-intensive.

[0074] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0075] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A PP multi-stage filter tank, characterized in that, Include: Filter tank (1); Water inlet (2): the water inlet (2) is opened in the left surface of the filter tank (1); Water outlet (3): the water outlet (3) is opened in the right surface of the filter tank (1); Filter screen (4): the filter screen (4) is provided with three, three filter screens (4) are arranged in the filter tank (1); Cleaning mechanism (5): the cleaning mechanism (5) is provided with three, three cleaning mechanisms (5) are arranged on the left side of the filter screen (4), the cleaning mechanism (5) comprises: Scraper (510): the outer surface of the scraper (510) is matched with the left surface of the filter screen (4); Collecting plate (520): the right surface of the collecting plate (520) is fixedly connected to the left surface of the filter screen (4); support plate (530): the support plate (530) is arranged on the left side of the scraper (510); Telescopic assembly (540): the telescopic assembly (540) is arranged in the support plate (530).

2. A PP multi-stage filter tank as claimed in claim 1, characterized in that: The telescopic assembly (540) comprises: First sliding groove (541): the first sliding groove (541) is opened in the right surface of the support plate (530), and the inner wall of the first sliding groove (541) is in sliding connection with the outer surface of the scraper (510); First sliding rod (542): the upper and lower ends of the first sliding rod (542) are fixedly connected to the inner wall of the first sliding groove (541), and the outer surface of the first sliding rod (542) is in sliding connection with the inner wall of the scraper (510); First spring (543): the first spring (543) is sleeved on the outer surface of the first sliding rod (542), the upper end surface of the first spring (543) is fixedly connected to the inner wall of the first sliding groove (541), and the lower end surface of the first spring (543) is fixedly connected to the upper surface of the scraper (510).

3. A PP multi-stage filter tank as claimed in claim 1, characterized in that: The left surface of the support plate (530) is provided with a rebound assembly (6), and the rebound assembly (6) is provided with a plurality of rebound assemblies (6), and the rebound assembly (6) comprises: Second sliding groove (601): the second sliding groove (601) is opened in the inner wall of the filter tank (1), and the inner wall of the second sliding groove (601) is in sliding connection with the outer surface of the support plate (530); Second sliding rod (602): the left and right ends of the second sliding rod (602) are fixedly connected to the inner wall of the second sliding groove (601), and the outer surface of the second sliding rod (602) is in sliding connection with the inner wall of the support plate (530); Second spring (603): the second spring (603) is sleeved on the outer surface of the second sliding rod (602), the left end surface of the second spring (603) is fixedly connected to the inner wall of the second sliding groove (601), and the right end surface of the second spring (603) is fixedly connected to the left surface of the support plate (530).

4. A PP multi-pass filter basin as claimed in claim 1, characterized in that: The left surface of the support plate (530) is provided with a pull ring (7), and the pull ring (7) is provided with three, and the right end surface of the pull ring (7) is fixedly connected to the left surface of the support plate (530).

5. A PP multi-pass filter basin as claimed in claim 1, characterized in that: The outer surface of the filter screen (4) is provided with a driving assembly (8), the driving assembly (8) is provided with three, three driving assemblies (8) include: Slide block (801): the slide block (801) is provided with two, two slide blocks (801) are fixedly connected to the outer surface of the filter screen (4) on one side close to the filter screen (4), and the slide block (801) is fixedly connected to the front and rear sides of the collecting plate (520) on one side close to the collecting plate (520); Threaded rod (802): the outer surface of the threaded rod (802) is rotatably connected to the inside of the rear slide block (801) through threads, and the outer surface of the threaded rod (802) is rotatably connected to the inside of the filter tank (1) through a bearing; Servo motor (803): the output end of the servo motor (803) is fixedly connected to the upper end surface of the threaded rod (802).

6. A PP multi-pass filter basin as claimed in claim 5, characterized in that: The inner wall of the filter tank (1) is provided with a third sliding groove (9), the third sliding groove (9) is provided with a plurality of, the inner wall of the third sliding groove (9) and the outer surface of the slide block (801) are in sliding connection.

7. A PP multi-pass filter basin as claimed in claim 5, characterized in that: The outer surface of the servo motor (803) is provided with a fixed sleeve (10), the inner wall of the fixed sleeve (10) is fixedly connected to the outer surface of the servo motor (803), and the lower end surface of the fixed sleeve (10) is fixedly connected to the upper surface of the filter tank (1).